TDA3504 Ver la hoja de datos (PDF) - Philips Electronics

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componentes Descripción

Lista de partido

TDA3504

Video control combination circuit

Philips Electronics 

signal insertion (1 V)

R GB

(R Y)

(1.05 V p-p)

14 CLAMPING

SATURATION

CONTROL (R Y)

R

MATRIX

3 x SIGNAL SWITCH 10 9 8

CONTRAST

CONTROL

5 43

BRIGHTNESS

CONTROL

red

BLANKING

OUTPUT

STAGE

19 red

5 V B/W

4.4 V

Y

G−Y (G Y)

R

MATRIX

MATRIX

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

green

BLANKING

OUTPUT

STAGE

20 green

5 V B/W

(B Y)

(1.33 V p-p)

Y

VBS

signal

(0.45 V p p)

Y

15

CLAMPING

11 CLAMPING

SATURATION

CONTROL

(B Y)

R

MATRIX

clamping pulse Y

Y AMPLIFIER

TDA3504

DRIVER FOR

SIGNAL

SWITCHES

2.9 V

12

saturation

control voltage

(2 to 4.2 V)

2

VP

(+12 V)

18

7

input for signal

switching voltage

CONTRAST

CONTROL

BRIGHTNESS

CONTROL

blue

BLANKING

OUTPUT

STAGE

1 blue

5 V B/W

clamping pulse

4.5 V

H+V

PEAK DRIVE

LIMITING

16

17

contrast control

voltage (2 to 4.2 V)

brightness

control

voltage

(1 to 3 V)

SANDCASTLE

DETECTOR

6

sandcastle

pulse

3

13

MSA516 - 1

n.c.

8V

4.5 V 2.5 V 0 V

Fig.1 Block diagram.

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